MPX 550

Parameter Descriptions

R Dly 1, 2, 3

(0ms to 5.060sec)

Sets the delay time of right voice 1, 2, or 3. The Dly/Eko effect has three independent voices on each side.

Rate

(0 to 50.05Hz)

RvbLvl

(off, -48dB to 0dB)

In Ambience programs, controls the amount of "extra" longer-decay reverb added to the effect. In Ambience, short-decay early reflections create a real-room sound.

Controls modulation speeds.

Res 1, 2

(-100 to +100%)

In Chorus programs, control the amount of feedback signal.

Shape

(0 to 255)

Controls the buildup of the early reflections that most audibly create the sound of a real room. Shape and Spread work together; if either is set to 0, the other has no effect.

Resonanc

(-100 to +100%)

Size

(4.0 to 76.0m)

Sets the rate of echo density buildup after the initial

In Flange programs, controls the amount of feedback.

period (which is controlled by Diffusion). It also acts as a

 

 

master control for Decay. Size changes a reverb sound

Rt HC

(28Hz to 19.4kHz, off)

from very small to very large. It is recommended to set

the Size control to the approximate size of the acoustic

Sets the frequency above which high frequencies are

space that is being created before adjusting other

rolled off in the reverberated signal, causing reverberated

parameters. The size in meters is roughly equal to the

signals to grow progressively darker. This results in a

longest dimension of the space. (Adjusting the Size

more natural sound because it simulates the effect of air

parameter causes the program to re-load.)

absorption in

a real hall. Setting this parameter to a

 

 

low- frequency dampens the audio as it re-circulates, and consequently can actually shorten the reverb time.

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Lexicon MPX 550 manual Rate To 50.05Hz RvbLvl, Res 1, Shape, Resonanc, Size, Rt HC